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ETSI TS 134 229-3 UMTS; LTE; Internet Protocol (IP) multimedia call control protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP); User Equipment (UE) conformance specification; Part 3: Abstract test suite (ATS) (3GPP TS 34.229-3 version 9.10.0 Release 9)
standard by European Telecommunications Standards Institute, 01/01/2014
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